1984
EROS Data Center
1:125k
1879
Powell, John Wesley, 1834-1902.
1:900k
1852
Stansbury, Howard
1:240k
1876
King, Clarence
1:253k
1861
Beckwith, E.G.
1:760k
Wheeler, G.M.
1:1m
1866
U.S. General Land Office
1897
Rand McNally and Company
